Apparatus for delivering paper from rolls



D. G. BERNARD APPARATUS FOR DELIVERING PAPER FROM ROLLS Filed Oct. 51, 1932 3 Sheets-Sheet l fimm "ELEM D. G BERNARD APPARATUS FOR DELIVERING PAPER FROM ROLLS Filed Oct. 31, 1932 5 Sheets-Sheet 2.

mm R@3@@ [BERNARD 2 M%41-%3 I APPARATUS FOR DELIVERING PAPER FROM ROLLS Patented June 9, 1936 PATENT OFFICE APPARATUS FOR DELIVERING PAPER FROM R LLS David G. Bernard, Chicago, 111., assignor, by direct and mesne assignments, to Donald M.

Carter, Chicago, Ill.

Application October 31, 1932, Serial No. 640,430

'7 Claims.

This invention relates to apparatus for delivering paper from a roll of paper to a printing press or other device that receives the paper, and has for its object to provide a new and improved apparatus of this description. The invention has as a further object to provide means for connecting the end or web of one roll ofpaper, the expiring roll, to the end or web of another roll of paper, the new roll, and for severing the web 10 of the expiring roll after the connection has been made, without stopping the apparatus. The invention has as a further object to insure the proper tension on the rolls of paper while the connection is being made between the webs of the expiring roll and the new roll. The invention has further objects which are more particularly pointed out in the accompanying description.

Referring now to the drawings, Fig. 1 is a view showing one form of device embodying the invention;

Fig. 2 is a partial sectional view taken on line 2-2 of Fig. 1.

Fig. 3 is a side view of one form of friction device;

Fig. 4 is a view of the device shown in Fig. 3 as seen from line 4-4.

Like numerals refer to like parts throughout the several figures. v Referring now to the drawings, I have shown a 30 device particularly adapted for delivering paper to printing presses, but the device may be used for any other purpose for which it is adaptable. In the construction shown I provide a support for a plurality of rolls of paper. It is important that there shall be at least two rolls of paper, but there may be three or more if desired, and I have illustrated the support as carrying the three rolls I, '2 and 3. In the construction shown these rolls are carried on a reel or rotating support which has a series of arms 4 connected with a ing the shaft to bring the rolls in contact with the belts I. There is a series of these belts and they are shown as endless belts passing around pulleys 8, SI, I0, and II. One of these pulleys, as for example the pulley I I, is driven so as to drive the belts at approximately the speed at which it is desired to have the web of paper moved. These belts are preferably moved at a speed somewhat lower than the web so as to exert a pull upon the web to produce the proper tension thereon as the web passes into the press or other device with which the paper is used. Each belt is also provided with a pulley I2 engaging a loop portion thereof, which pulley is weighted and which inshaft 5 with means, such as a motor 6, for rotatcreases the size of the loop which it engages as the paper is unwound from the roll so as to keep the belts taut and in proper engagement with the roll as it decreases in size. As the paper is being delivered from the roll, these belts engage the 5 periphery of the roll and maintain tension on the web. As herein shown the belts are moved in the direction of the arrow.

Associated with each roll is a device separate from the belts for securing a tension on the web, particularly after the roll has been moved out of contact with the belts. This device is preferably arranged to work automatically and to work responsive to gravity. In the construction shown the rolls are mounted between spindles I3, which spindles rotate as the rolls are unwound. Associated with each spindle is a friction member I4, adapted to engage the spindle. This friction member is preferably provided with a removable friction shoe I5. The friction shoe is shaped to conform to the spindle so as to secure the desired frictional contact therewith. The frictional member is pivoted at one endat I6. The other end of the friction member is connected by a pin II with the end. I 8 of an arm I9, which is shown in the form of a bell crank lever pivoted at 20 to the arm 2I which connects the spindle I3 with the shaft 5, see Figs. 3 and 4. In the particular construction shown the arm 2I has the removable piece 22 connected therewith and the ac pivot 20 is connected to this piece. The end of the friction device and of the part I8 of the arm 19 are provided with slots 23 so as to permit the proper movement of the parts. The arm I9 may be of a suificient weight of itself to give the proper pressure to the friction device, or

' it may be provided with a weight 24. This weight, if used, is preferably adjustable along the arm I9 and is held in any of its adjusted positions by some holding device, such as the screw 25. The 4.0 parts are so arranged that when the expiring roll I is moved away from the belts 1 toward the position shown in Fig. 2, the arm I9 under the influence of gravity is moved to increase the angle between the friction device and said arm and move the friction device inwardly toward the spindle so as to apply friction thereto. This friction resists the rotation of the expiring roll I and maintains the proper tension on its web 26 while the roll I is out of contact with the belts I. A stop 2'! limits the movement of the friction mem- "ber I4 and the end I8 of the arm I9 when they are moved to their released position to release the friction device from the spindle. A pressure device 28 is provided for exerting a pressure on the two webs to cause them to be connected together by adhesive, as hereinafter set out. The pressure is produced by moving the roll against the pressure device.

The parts are preferably arranged so that when the roll is in contact with the belts l the friction device is not effective, at least to any important extent, but when the expiring roll is moved away from the belts, then the friction device is automatically, by the action of gravity, brought into effective relationship with its co acting part so as to apply a retarding effect to the roll and thereby apply the desired tension to the web passing therefrom.

In the use of my device the expiring roll i is moved out of contact with the belts before all the paper has been delivered therefrom, being moved for example to the position like that shown in Fig. 2. This brings the new roll 2 into contact with the belts ll so that these belts speed the new roll up to the same speed, or approximately the same speed as the web 26 passing from the expiring roll I. This movement of the rolls is produced by rotating the shaft 5 by the motor, or through any other agency. This new roll 2 has adhesive on the end of the web thereof, the adhesive being located between the belts l so as not to be engaged by the belts, and there is means for keeping the end of the web of the new roll from flying outwardly. Any suitable means for this purpose can be used, such for example as a little adhesive of some kind on the inner face thereof, or braking tabs.

When the expiring roll I is moved away from the belts l the friction device is brought into active operation by the arm l9 which, under the action of gravity, moves to press the friction device against the spindle of the roll I, thereby tending to retard the rotation of the roll sufficiently to put the desired tension on its web 26. After the roll 2 has been brought up to the desired speed the shaft 5 is rotated further so as to bring the periphery of the roll 2 against the pressure device 28, which is illustrated as a roller arranged to exert a suflicient pressure on the web 26 of the expiring roll to cause it to be pressed against the web of the new roll 2 to cause the adhesive on the end of the web of the new roll 2 to connect said web with the web 26. After the two webs have been connected together, the web 26 is severed, preferably at some point between the pressure device 28 and the expiring roll i, so that the paper is then delivered from the new roll 2. In the use of my device this web 26 may be severed by hand or by machinery or by any other suitable means, and the severing may be done automatically, the action being responsive to the connection of the web of the two rolls together. As this is no part of the present invention, I have not illustrated it.

When the new roll 2 is about exhausted the shaft 5 is again rotated and the operation above set forth is repeated. The expiring roll is then brought down to the position that the roll 3 occupies in Fig. 2, so that a new roll can be placed therein, and the operation thus continued without stopping of the device. When the device reaches the position of the roll 3, the friction device is preferably ineffective. As the arm I!) is moved to a position to relieve the pressure of the friction element, some suitable means, such as the stop 21, is used to limit the movement of the arm I9.

I claim:

1. An apparatus for delivering paper from rolls, comprising means for movably mounting a plurality of rolls in position, one of the rolls being the expiring roll and another of the rolls being a new roll, tension means for engaging the periphery of the expiring roll while the paper is being normally delivered therefrom, the end of the web of the new roll being provided with adhesive, a pressure device in proximity to the web of the expiring roll, means for moving the expiring roll out of contact with the tension means to bring its web in proximity to the pressure device and for bringing the new roll into operative connection with the tension means and the pressure device, and automatic means for applying tension to the web of the expiring roll when it is moved out of contact with the tension means.

2. An apparatus for delivering paper from rolls, comprising means for movably mounting a plurality of rolls in position, one of the rolls being the expiring roll and another of the rolls being a new roll, tension means for engaging the periphery of the expiring roll while the paper is being normally delivered therefrom, the end of the web of the new roll being provided with ad-- hesive, a pressure device in proximity to the web of the expiring roll, means for moving the expiring roll out of contact with the tension means to bring its web in proximity to the pressure de vice and for bringing the new roll into operative connection with the tension means and the pressure device, and automatic means for applying tension to the web of the expiring roll when it is moved out of contact with the tension means, said automatic means being responsive to the action of gravity.

3.1m; apparatus for delivering paper from rolls, comprising means for movably mounting a plurality of rolls in position, one of the rolls being the expiring roll and another of the rolls being the new roll, tension means for engaging the periphery of the expiring roll while the paper is being normally delivered therefrom, means for moving the rolls so that the expiring roll is movedv out of engagement with the tension means and the new roll is moved into engagement therewith, and a second tension means independent of the first tension means and separate from the first tension means for automatically acting on the expiring roll after it is out of contact with the first tension means so as to apply tension to the web thereof, said second tension means being rendered operative by the action of gravity when the means for movably mounting the roll is in a predetermined position,

4. An apparatus for delivering paper from rolls, comprising means for movably mounting a plurality of rolls in position, one of the rolls being the expiring roll and another of the rolls being the new roll, tension means for engaging the periphery of the expiring roll while the paper is being normally delivered therefrom, means for moving the rolls so that the expiring roll is moved out of engagement with the tension means and the new roll is moved into engagement therewith, a second tension means independent of the first tension means and separate from the first tension means for automatically acting on the expiring roll after it is out of contact with the first tension means so as to apply tension to the web thereof, said second tension means being rendered operative by the action of gravity when the means for movably mounting the roll is in a predetermined position, and means for relieving the tension action of said second tension means while the web of the roll is in'contact with the first tension means.

5. An apparatus for delivering paper from the rolls, comprising means for movably mounting a plurality of rolls in position, one of the rolls being the expiring roll and another of the rolls being the new r011, tension means for engaging the periphery of the expiring roll while the paper is being normally delivered therefrom, means for moving the rolls so that the expiring roll is moved out of engagement with the tension means and the new roll is moved into engagement therewith, and a second tension means independent of the first tension means and separate from, the first tension means for acting on the expiring roll after it is out of contact with the first tension means so as to apply tension to the web thereof, said second tension means being rendered operative by the action of gravity when the means for movably mounting the roll is in a predetermined position, and means for connecting the web of the expiring roll with the web of the new roll while the second tension means is operating.

6. An apparatus for delivering paper from rolls, comprising a movable roll supporting device for movably mounting a plurality of rolls in position, one of the rolls being the expiring roll and another of the rolls being the new roll, tension means for engaging the periphery oi! the expiring roll while the paper is being normally delivered therefrom. means for moving the roll support so that the expiring roll is moved out of engagement with the tension means and the new roll is moved into engagement therewith, a. second tension means for acting on the expiring roll after it is out of contact with the first tension means so as to apply a tension to the web thereof, and comprising a friction device engaging a part associated with the roll supporting device and normally inoperative, a weight connected with said roll supporting device, said weight acting in response to gravity to start the action or said triction device when the'weight reaches a predetermined position.

'7. An apparatus for delivering paper from rolls, comprising a support for a plurality of rolls from one of which the paper is being delivered, a part rotating with said latter roll as the paper is being delivered, a friction device attached to said support for engaging said part normally inoperative, a weight connected with said roll supporting -device, said weight acting in response to gravity to start the action oi said friction device when the weight reaches a predetermined position.

DAVID G. BERNARD. 

